Python Tkinter Frame - making frame width span full root window width

Question

I'm learning Python GUI programming with tkinter. I needed to put an edge in my root window utilizing the grid geometry manager, indicate a height, and have the frame grow to the full width of the root window. I attempted to do this utilizing the tacky alternatives however this doesn't create the ideal outcome. How would I cause the frame to grow to the full width of the window without physically indicating the width?

Code:

import tkinter

import tkinter.ttk

win = tkinter.Tk()

win.geometry('600x600')

frame = tkinter.Frame(win, height=300)

frame.configure(bg='red')

frame.grid(column=0, sticky=tkinter.E + tkinter.W)

win.mainloop()

Answer 1

Try the below code (Make sure that call to grid_columnconfigure is on win, which is actually the parent of your frame gadget):

import tkinter

import tkinter.ttk

win = tkinter.Tk()

win.geometry('600x600')

frame = tkinter.Frame(win, bg='red', height=300)

frame.grid(row=0, column=0, sticky='ew')

win.grid_columnconfigure(0,weight=1)

win.mainloop()

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